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    • 1. 发明授权
    • Method of making an oxide superconducting thin film
    • 制造氧化物超导薄膜的方法
    • US5679625A
    • 1997-10-21
    • US563905
    • 1995-11-22
    • Wataru ItoTadataka MorishitaNorio HommaYukihisa Yoshida
    • Wataru ItoTadataka MorishitaNorio HommaYukihisa Yoshida
    • C01G1/00C01G3/00C23C14/08C23C14/35C23C14/46C30B29/22H01L39/24C23C14/34
    • C23C14/35C23C14/087C23C14/46H01L39/2435Y10S505/731
    • A method of making a superconducting thin film of a Y--Ba--Cu--O series material by using a diode parallel plate type sputtering apparatus including a vacuum chamber, a substrate disposed within the vacuum chamber and having a substantially flat surface on which the superconducting thin film is to be formed, and a plate-shaped target functioning as a cathode and disposed within the vacuum chamber to parallelly face to the flat surface of the substrate, the target being made of the same material as the superconducting thin film, a plasma gas being introduced into the vacuum chamber, and a voltage being applied between the cathode and the substrate, wherein the method comprises the steps of applying a high frequency voltage having a frequency higher than 40 MHz between the cathode and the substrate to generate plasma of the introduced gas, superimposing a DC voltage (V) on the high frequency voltage in a polarity that the cathode becomes negative, and setting the DC voltage at a value where the DC voltage is substantially unchanged with variation of a cathode current flowing through the target when adjusting the DC voltage and controlling a value of the DC current while maintaining the DC voltage substantially at the set value.
    • 通过使用包括真空室的二极管平行板型溅射装置制造Y-Ba-Cu-O系材料的超导薄膜的方法,设置在真空室内的基板,并具有基本平坦的表面,超导 要形成薄膜,并且一个板状靶用作阴极并且设置在真空室内以平行地面对基板的平坦表面,靶由与超导薄膜相同的材料制成,等离子体 气体被引入真空室中,并且施加在阴极和衬底之间的电压,其中该方法包括在阴极和衬底之间施加频率高于40MHz的高频电压以产生等离子体的步骤 引入气体,以与阴极变为负极性的高频电压叠加直流电压(V),将直流电压设定为 当调节直流电压并控制直流电流的值同时保持直流电压基本上处于设定值时,直流电压随着流经目标的阴极电流的变化而基本上不变。
    • 9. 发明授权
    • Phase-shifting circuit and multibit phase shifter
    • 移相电路和多位移相器
    • US07541894B2
    • 2009-06-02
    • US10594009
    • 2004-07-27
    • Kenichi MiyaguchiMorishige HiedaTamotsu NishinoMasatake HangaiMoriyasu MiyazakiYukihisa YoshidaTadashi TakagiMikio Hatamoto
    • Kenichi MiyaguchiMorishige HiedaTamotsu NishinoMasatake HangaiMoriyasu MiyazakiYukihisa YoshidaTadashi TakagiMikio Hatamoto
    • H01P9/00
    • H01P1/185H03H11/20H03H11/48H03H19/008
    • A phase-shifting circuit includes: a first parallel circuit which is connected across input and output terminals of a high frequency signal, composed of a first inductor and a first switching element that exhibits a through state in an ON state and a capacitive property in an OFF state, and produces parallel resonance at a prescribed frequency when the first switching element is in the OFF state; a series circuit composed of a second inductor and a third inductor and connected in parallel with the first parallel circuit; a capacitor having its first terminal connected to a point of connection of the second and third inductors; and a second parallel circuit which is connected across a second terminal of the capacitor and a ground, composed of a fourth inductor and a second switching element that exhibits a through state in an ON state and a capacitive property in an OFF state, and produces parallel resonance at a prescribed frequency when the second switching element is in the OFF state. The phase-shifting circuit establishes by switching an operation mode of setting the first switching element at the ON state and the second switching element at the OFF state, or an operation mode of setting the first switching element at the OFF state and the second switching element at the ON state.
    • 一种移相电路包括:第一并联电路,其连接在高频信号的输入和输出端上,该第一并联电路由第一电感器和第一开关元件组成,该第一电感器和第一开关元件呈现导通状态的通态, OFF状态,并且当所述第一开关元件处于OFF状态时,以规定频率产生并联谐振; 串联电路,由第二电感器和第三电感器组成,并与第一并联电路并联; 电容器,其第一端子连接到第二和第三电感器的连接点; 以及连接在电容器的第二端子和地之间的第二并联电路,由第四电感器和第二开关元件构成,该第四电感器和第二开关元件呈现处于导通状态的通状态和处于断开状态的电容性质,并且产生并联 当第二开关元件处于断开状态时以规定频率进行谐振。 移相电路通过切换将处于导通状态的第一开关元件设定为OFF状态的操作模式,或者将第一开关元件设定为OFF状态的操作模式和第二开关元件 在ON状态。